120837289 has 2 divisors, whose sum is σ = 120837290. Its totient is φ = 120837288.

The previous prime is 120837281. The next prime is 120837307. The reversal of 120837289 is 982738021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120824064 + 13225 = 10992^2 + 115^2 .

It is an emirp because it is prime and its reverse (982738021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120837289 - 2³ = 120837281 is a prime.

It is not a weakly prime, because it can be changed into another prime (120837281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60418644 + 60418645.

It is an arithmetic number, because the mean of its divisors is an integer number (60418645).

Almost surely, 2^120837289 is an apocalyptic number.

It is an amenable number.

120837289 is a deficient number, since it is larger than the sum of its proper divisors (1).

120837289 is an equidigital number, since it uses as much as digits as its factorization.

120837289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 120837289 is about 10992.6015574112. The cubic root of 120837289 is about 494.3869416143.

The spelling of 120837289 in words is "one hundred twenty million, eight hundred thirty-seven thousand, two hundred eighty-nine".